In the category of “as California goes, so goes the rest of the nation,” the HVACR industry has been closely watching the impact of what is being called “the nation’s first comprehensive regulation to reduce potent greenhouse gases from commercial and industrial refrigeration.”
Whether or not HCs become major refrigerant players in the U.S. depends on who you talk to. Advocates point to extremely lower global warming potential, low cost, and a proven track record in Europe and Asia. Others see the flammability issue, A3 safety rating, and current building and fire codes limiting use to smaller applications.
Every time I walk through a supermarket I take a look at the refrigeration and freezer cases. I want to see how well they are holding the temperature they should be holding. But from time to time, I realize that aspect of refrigeration is but a small part of how important it is to keep cold things cold.
In recent months, Tecumseh Products Co. has made a number of announcements related to a line of refrigeration compressors that are optimized for HC refrigerants, an expansion of its line of large frame rotary compressors, and the introduction of direct current (dc) compressors.
A study from Carel has tried to get a precise handle on supermarket refrigeration energy savings at various levels of upgrades and at the same time has assigned some new terminology to the steps — ‘traditional,’ ‘evolved,’ and ‘excellent.’